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Flashcards in Technique Deck (22):
1

A ________ X or vertical line through a tooth on an odontogram is used for congenitally missing teeth. ________ is used for previously extracted teeth.

Black, blue

2

An outlined surface in blue means what?

Composite resin

3

A filled in blue surface means what?

Amalgam

4

A Cross hatch surface in blue means what?

Gold

5

An outlined tooth in blue means what?

Porcelain/ceramic crown

6

What color is used for treatment planning?

Red

7

What are 3 ways to maximize sharpness and resolution of a radiograph?

1-Small while effective focal spot
2-Increase distance from focal spot to object
3-Minimize distance from object to image receptor

*also helps capture accurate size

8

What two ways can image shape distortion be minimized?

1-Film parallel to long axis of tooth
2-Central ray perpendicular to object and image receptor

9

What happens when the central beam is perpendicular to the image receptor but the object is not?

Foreshortening

10

What happens when the central beam is perpendicular to the object but not the image receptor?

Elongation

11

What are two techniques to minimize distortion?

1-Paralleling technique (preferred)
2-Bisecting angle technique

12

Determining if an object on the radiograph is buccal or lingual or in the same plane of the tooth is done using what technique?

The SLOB rule (Same Lingual- Opposite Buccal)

13

Where should the central x-ray point when taking maxillary central incisor regions?

Tip of the nose

14

Where should the central x-ray point when taking maxillary Cuspid region?

Corner of the nose

15

Where should the central x-ray point when taking maxillary bicuspid region?

Down from the pupil to mid cheek area

16

Where should the central x-ray point when taking maxillary molar region

Down from the corner of the eye mid cheek area

17

Where should the central x-ray point when taking mandibular molars?

Down from the corner of the eye mid mandible

18

Where should the central x-ray point when taking mandibular bicuspid region?

Down from the pupil mid mandible

19

Where should the central x-ray point when taking mandibular cuspid region?

down from corner of the nose on the chin corner

20

Where should the central x-ray point when taking mandibular centrals?

center of the chin

21

A substance that permits transmission of x-rays is said to be?

Radiolucent

22

A substance that blocks transmission of x-rays is said to be?

Radiopaque